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Nano-Micro Letters 2024年第10期16卷 618-637页

作者： Se In Kim Woong-Ju Kim jin Gu Kang dong-Wan Kim School of Civil Environmental and Architectural EngineeringKorea University02841 SeoulSouth Korea Nanophotonics Research Center Korea Institute of Science and Technology02792 SeoulSouth Korea

Doped two-dimensional(2D)materials hold significant promise for advancing many technologies,such as microelectronics,optoelectronics,and energy ***,n-type 2D oxidized Si nanosheets,namely n-type siloxene(n-SX),are employed as Li-ion battery *** thermal evaporation of sodium hy.ophosphite at 275℃,P atoms are effectively incorporated into siloxene(SX)without compromising its 2D layered morphology and unique Kautsky-type crystal ***,selective nucleophilic substitution occurs,with only Si atoms being replaced by P atoms in the o_(3)≡Si-H *** resulting n-SX possesses two delocalized electrons arising from the presence of two electron donor types:(i)P atoms residing in Si sites and(ii)H *** doping concentrations are varied by controlling the amount of precursors or their mean free *** at 2000 mA g^(-1),the n-SX electrode with the optimized doping concentration(6.7×10^(19) atoms cm^(-3))delivers a capacity.of 594 mAh g^(-1) with a 73%capacity retention after 500 *** improvements originate from the enhanced kinetics of charge transport processes,including electronic conduction,charge transfer,and solid-state *** approach proposed herein offers an unprecedented route for engineering SX anodes to boost Li-ion storage.

关键词： Li-ion battery Two-dimensional N-type siloxene Doping mechanism Kinetics

Solitary Wave Simulated by the Water Column Collapsing Method

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China ocean Engineering 2022年第3期36卷 395-402页

作者： WANG jin dong Chang-ming LIU Qing-jun ZUo Qi-hua School of Marine Sciemces Nanjing University of Information Science&TechnologyNanjing 210044China Southern ocean Science and Engineering Guangdong Laboratory(Zhuhai) Zhuhai 519082China Nanjing Xinda Institute of Safety and Emergency Management Nanjing 210044China Nanjing Hydraulic Research Institute Nanjing 210029China

Although solitary waves with large ratio of wave height to water depth are difficult to produce in laboratory settings by traditional wave generating methods,a water column collapsing(WCC)method can be *** study uses the WCC method to produce large solitary waves and through a series of experiments,an empirical equation is developed that considers wave height and water depth in addition to water column height and *** solitary waves are studied through wavelet *** from this analysis demonstrate that the ratios between the initial lab-oratory-generated solitary wave and its theoretical counterpart range from 0.2−*** using the results,a new solitary wave generating law is derived and can be applied to future solitary wave laboratory studies.

关键词： water column collapsing solitary wave wavelet spectrum waveform evolution generating law

Heat Assisted Magnetic Recording with Matching Media and Recording Head Field

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Chinese Physics Letters 2010年第6期27卷 258-261页

作者： LIAo Jia-Lin WEI Shen-jin LI jing jin Qing-yuan CHE Xiao-dong Key Laboratory.of Micro and Nano Photonic Structures (Ministry.of Education) Laboratory of Advanced Materials and Department of Optical Science and Engineering Fudan University Shanghai 200433 Hitachi Global Storage Technologies San Jose CA USA

The dynamic performance of heat assisted magnetic recording （HAMR） on different media is investigated. Signal and signal-to-noise ratio enhancement are achieved in high coereivity perpendicular media with the aid of laser heating. Linear recording density is increased while saturation write current is lowered. Trailing field partial erasure is observed in lower coercivity media with a ring head, which causes signal reduction with increasing write current or application of a laser. Precautions should be taken against partial erasure in overall recording system optimization of HAMR in order to achieve ultrahigh recording density.

关键词： MAGNETIC recorders & recording DATA tapes PERFoRMANCE evaluation SIGNAL-to-noise ratio ELECTRIC heating SIGNAL processing

optimization of territorial space layout in China

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Journal of Geographical Sciences 2024年第9期34卷 1719-1738页

作者： dong yin jin Gui DENG Xiangzheng Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry.of Education Fujian Normal UniversityFuzhou 350007China School of Geographical Sciences Fujian Normal UniversityFuzhou 350007China School of Economics and Management China University of GeosciencesWuhan 430079China Key Laboratory.of Land Surface Pattern and Simulation Institute of Geographic Sciences and Natural Resources ResearchCASBeijing 100101China College of Resources and Environment University of Chinese Academy of SciencesBeijing 101408China

The evolution of territorial space is intrinsically linked to economic growth, societal welfare, and ecological preservation. In the context of escalating spatial conflicts and stringent resource limitations, resource efficiency has emerged as a fundamental pillar for the scientific optimization of territorial space layout. Drawing upon resource efficiency metrics from cities nationwide, this study constructs scenarios for territorial space development and conservation, assesses developmental capacity under varying preferences, and subsequently delineates strategic blueprints using an integrated “point-axis-area” approach. The findings reveal the following:(1) Resource efficiency in China has witnessed a consistent uptick, yet remains modest overall, with marked regional disparities.(2) Throughout the investigation period, developmental capacity has seen progressive enhancement, with a pronounced capacity in scenarios favoring development, radiating axially from urban conglomerates.(3) The layout of pivotal points and developmental axes has transitioned from a “tri-pillar” to a diamond configuration, with the coastal corridor, Harbin-Beijing-Guangzhou corridor, and the corridor along the yangtze River standing out.(4) Strategic points progressively converge along key axes, whereas dominant regions exhibit clear differentiation on either side of the Hu Huanyong Line. By integrating elements of the territorial spatial structure,this paper proposes blueprints for “five horizontal and three vertical zones with eight cores and three areas,” “four horizontal and three vertical zones with six cores and three areas,”and “three horizontal and four vertical zones with five cores and three areas,” corresponding to scenarios of prioritizing development, status quo maintenance, and prioritizing conservation, respectively. The outcomes of this research offer a technical foundation and theoretical guidance for the pursuit of high-quality territorial space development and a vision

关键词： territorial space resource efficiency development and conservation developmental capacity territorial space blueprints China

Effects of Vegetation Succession on Soil Fertility Within Farming-Plantation Ecotone in Ziwuling Mountains of the Loess Plateau in China

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Agricultural Sciences in China 2010年第10期9卷 1481-1491页

作者： LIANG Jian WANG Xiao-an yU Zhong-dong dong Zhong-min WANG jin-cheng School of Life Sciences Shaanxi Normal University Xi'an 710062 P.R.China College of Forestry Northwest A&F University Yangling 712100 P.R. China Department of Biology Saint Mary 's University Halifax B3H 3C3 Canada

To further understand the relationship between vegetation succession and soil fertility within farming-plantation ecotone in Ziwuling Mountains of the Loess Plateau, nine kinds of widely distributed communities at different succession stages were selected, and the effects of vegetation succession on soil fertility were studied through the methods of comparing two hierarchical clustering （similarity index： B） and other multivariate analysis. The results showed that：（i） the similarity in clustering pattern of nine communities which classified by plant species and soil nutrients respectively showed a trend of B ^-overall plant-soil0-10cn〉B^-overall plant-soil 10-20 cm 〉B^- overall plant-soil 20-40 cm, and for the top soil, it showed a trend of B^- grass-soil 0-10 cm 〉 B^-shrub-soil 0-10 cm 〉 Btree-soil0-10 cm; （ii） soil fertility increased during the succession process from abandoned land to forest community, and the soil fertility.of forest community showed an increased order of coniferous forest →mixed forest →broadleaf forest; （iii） during the process of vegetation succession, the variation of topsoil fertility was higher than that of the subsurface soil （coefficient of variation： CV0-10 cm 〉CV 10-20 cm 〉 CV20-40 cm）, and when the succession developed into the stages of shrub and forest communities, the top soil fertility had been improved significantly; and （iv） for the subsurface soil of the communities at the advanced succession stages, the soil fertility also increased to some extent. our results suggested that the method of comparing two hierarchical clustering reflected the similarity level of different cluster patterns, therefore, it was helpful to study the relationship between vegetation succession and soil fertility. There was a corresponding relationship between the change process of soil fertility from the top soil to subsurface soil and the process of vegetation succession from the early stages to the advanced stage. The differentiations of soil fertil

关键词： vegetation succession soil fertility vegetation-soil communities multivariate statistical analysis LoessPlateau

Surgical treatment for severe cubital tunnel syndrome with absent sensory nerve conduction

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Neural Regeneration Research 2019年第3期14卷 519-524页

作者： jin-Song Tong Zhen dong Bin Xu Cheng-Gang Zhang yu-dong Gu Department of Hand Surgery Huashan Hospital Fudan University Key Laboratory.of Hand Reconstruction Ministry of Health Shanghai Key Laboratory.of Peripheral Nerve and Microsurgery

For severe cubital tunnel syndrome, patients with absent sensory nerve action potential tend to have more severe nerve damage than those without. Thus, it is speculated that such patients generally have a poor prognosis. How absent sensory nerve action potential affects surgical outcomes remains uncertain owing to a scarcity.of reports and conflicting results. This retrospective study recruited one hundred and fourteen cases(88 patients with absent sensory nerve action potential and 26 patients with present sensory nerve action potential) undergoing either subcutaneous transposition or in situ decompression. The minimum follow-up was set at 2 years. Primary.outcome measures of overall hand function included their McGowan grade, modified Bishop score, and Disabilities of the Arm, Shoulder, and Hand Questionnaire(DASH) score. For patients with absent sensory nerve action potential, 71 cases(80.7%) achieved at least one McGowan grade improvement, 76 hands(86.4%) got good or excellent results according to the Bishop score, and the average DASH score improved 49.5 points preoperatively to 13.1 points postoperatively. When compared with the present sensory nerve action potential group, they showed higher postoperative McGowan grades and DASH scores, but there was no statistical difference between the modified Bishop scores of the two groups. Following in situ decompression or subcutaneous transposition, great improvement in hand function was achieved for severe cubital tunnel syndrome patients with absent sensory nerve action potential. The functional outcomes after surgery for severe cubital tunnel syndrome are worse in patients with absent sensory nerve action potential than those without. This study was approved by the Ethical Committee of Huashan Hospital, Fudan University, China(approval No. 2017142).

关键词： nerve regeneration absent sensory nerve action potential cubital tunnel syndrome disease severity electrodiagnostic testing in situ decompression subcutaneous transposition surgical outcomes prognostic factors peripheral nerve compression neural regeneration

Analysis on Dynamic Response of Hard-Soft-Hard Sandwich Panel Under Blast Loading

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Transactions of Tianjin University 2006年第B09期12卷 233-237页

作者： dong yongxiang FENG Shunshan jin Jun State Key Laboratory.of Explosion Science and Technology Beijing Institute of Technology Beijing 100081 China The Academy.of Armored Forces Engineering of PLA Beijing 100072 China

Surface contact explosion experiments have been performed for the study.of dynamic response of the hard-soft-hard sandwich panel under blast loading. Experimental results have shown that there are four damage modes, including explosion cratering, scabbing of the backside, radial cracking induced failure and circumferential cracking induced failure. It also illustrates that the foam material sandwiched in the multi-layered media has an important effect on damage patterns. The phenomena encountered have been analyzed by the calculation with ALE method. Meanwhile, the optimal analysis of foam material thickness and position in the sandwich panel were performed in terms of experimental and numerical analysis. The proper thickness proportion of the soft layer is about 2.0% to the thickness of sandwich panel and the thickness of the upper hard layer and lower hard layer is in the ratio of ？ to 3 under the condition in this paper when the total thickness of soft layer remains constant.

关键词： dynamic response sandwich panel blast loading foam material

Methylated CpG dinucleotides in the 5 -a reductase 2 gene may explain finasteride resistance in benign prostatic enlargement patients

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Asian Journal of Andrology 2021年第3期23卷 266-272页

作者： Zhe-Min Lin dong-dong Fan Song jin Zhan-Liang Liu yi-Nong Niu Department of Urology Beijing Chaoyang HospitalCapital Medical UniversityBeijing 100016China Department of Urology Beijing Miyun Teaching HospitalCapital Medical UniversityBeijing 101500China Department of Urology Beijing Tsinghua Changgung HospitalTsinghua UniversityBeijing 102218China

The inhibition of 5-a reductase type 2(SRD5A2)by finasteride is commonly used for the management of urinary.obstruction resulting from benign prostatic enlargement(BPE).Certain BPE patients showing no SRD5A2 protein expression are resistant to finasteride *** previous work showed that methylated cy.osine-phosphate-guanine(CpG)islands in the SRD5A2 gene might account for the absence or reduction of SRD5A2 protein ***,we found that the expression of the SRD5A2 protein was variable and that weak expression of the SRD5A2 protein(scored 0-100)occurred in 10.0%(4/40)of benign adult *** showed that the expression of SRD5A2 was negatively correlated with DNA methyltransferase 1(DNMT1)*** vitro SRD5A2-negative BPH-1 cells were resistant to finasteride treatment,and SRD5A2 was re-expressed in BPH-1 cells when SRD5A2 was demethylated by 5-Aza-2T-deoxycytidine(5-Aza-CdR)or N-phthalyl-L-tryptophan(RG108).Furthermore,we determined the exact methylation ratios of CpG dinucleotides in a CpG island of SRD5A2 through MassArray quantitative methylation *** methylated CpG dinucleotides,including four CpG dinucleotides in the promoter and six CpG dinucleotides in the first exon,were found in a CpG island located from-400 bp to+600 bp in SRD5A2,which might lead to the silencing of SRD5A2 and the absence or reduction of SRD5A2 protein *** cannot exert a therapeutic effect on patients lacking SRD5A2,which may partially account for the resistance to finasteride observed in certain BPE patients.

关键词： 5-a reductase benign prostatic enlargement CpG island methylated CpG dinucleotides methylation

Identification of Zinc Deficiency-Responsive MicroRNAs in Brassica juncea Roots by Small RNA Sequencing

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Journal of Integrative Agriculture 2013年第11期12卷 2036-2044页

作者： SHI dong-qing ZHANG yuan MA jin-hu LI yu-long XU jin Xishuangbanna Tropical Botanical Garden Chinese Academy of Sciences College of Life Sciences Henan University College of Life Science and Geography Qinghai Normal University College of Agronomy Shanxi Agricultural University Key Laboratory.of Agricultural Water Resources Center for Agricultural Resources Research/Institute of Genetics and Developmental BiologyChinese Academy of Sciences

The importance of zinc （Zn） as a micronutrient essential for plant growth and development is becoming increasingly apparent. Much of the world’s soil is Zn-deficient, and soil-based Zn deficiency is often accompanied by Zn deficiency in human populations. MicroRNAs （miRNAs） play important roles in the regulation of plant gene expression at the level of translation. Many miRNAs involved in the modulation of heavy metal toxicity responses in plants have been identiifed;however, the role of miRNAs in the plant Zn deifciency response is almost completely unknown. Using high-throughput Solexa sequencing, we identiifed several miRNAs that respond to Zn deifciency in Brassica juncea roots. At least 21 conserved candidate miRNA families, and 101 individual members within those families, were identiifed in both the control and the Zn-deifcient B. juncea roots. Among this, 15 miRNAs from 9 miRNA families were differentially expressed in the control and Zn-deifcient plants. of the 15 differentially expressed miRNAs, 13 were up-regulated in the Zn-deifcient B. juncea roots, and only two, miR399b and miR845a, were down-regulated. Bioinformatics analysis indicated that these miRNAs were involved in modulating phy.ohormone response, plant growth and development, and abiotic stress responses in B. juncea roots. These data help to lay the foundation for further understanding of miRNA function in the regulation of the plant Zn deifciency response and its impact on plant growth and development.

关键词： Zn deficiency Brassicajuncea microRNA deep sequencing

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中风回春片对急性脑梗死恢复期患者的影响

临床研究 2025年第1期33卷 95-99页

作者：郭东玲金鑫董艳丽郑州市第二人民医院全科医学科河南郑州450000 郑州市第二人民医院中医科河南郑州450000

目的将中风回春片应用于急性脑梗死(ACI)恢复期患者治疗,观察其临床疗效、神经功能及安全性。方法选取2019年9月至2023年6月郑州市第二人民医院收治的86例ACI恢复期患者,采用随机数字表法将其分为对照组(n=43,常规西药治疗)和试验组(n=... 详细信息

目的将中风回春片应用于急性脑梗死(ACI)恢复期患者治疗,观察其临床疗效、神经功能及安全性。方法选取2019年9月至2023年6月郑州市第二人民医院收治的86例ACI恢复期患者,采用随机数字表法将其分为对照组(n=43,常规西药治疗)和试验组(n=43,采用中风回春片联合常规西药治疗)。比较两组患者临床疗效、中医症状积分、血清炎症因子[白细胞介素-6(IL-6)、转化生长因子-β(TGF-β)、超敏C反应蛋白(hs-CRP)]、神经营养指标[神经生长因子(NGF)、脑源性神经营养因子(BDNF)、胰岛素样生长因子1(IGF-1)]、神经损伤指标[心型脂肪酸结合蛋白(H-FABP)、S-100B蛋白(S100B)、神经元特异性烯醇化酶(NSE)]及不良反应发生率。结果试验组治疗有效率(93.02%)高于对照组(72.09%)差异具有统计学意义(P0.05);治疗后,两组中医症状积分均降低,且试验组低于对照组,差异均有统计学意义(P0.05);治疗后,两组患者IL-6、hs-CRP水平较治疗前均降低,且试验组低于对照组,TGF-β水平较治疗前升高,且试验组高于对照组,差异均有统计学意义(P0.05);治疗后,两组NGF、BDNF、IGF-1水平较治疗前均升高,且试验组高于对照组,差异均有统计学意义(P0.05);治疗后,两组患者H-FABP、S100B、NSE水平较治疗前均降低,且试验组低于对照组,差异均有统计学意义(P0.05)。结论中风回春片联合常规西药可有效提高ACI恢复期患者的临床疗效,改善患者的中医症状,促进患者神经功能恢复,且安全性佳。

关键词：急性脑梗死恢复期中风回春片神经营养神经损伤